What is the answer to 3x+2y+5x-y

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.

What’s the range cuz i can’t find it?

Need same math paper but the back now i hope your able to read it cleary i need with hw